mirror of
https://github.com/appgurueu/modlib.git
synced 2024-11-22 15:23:48 +01:00
98 lines
2.5 KiB
Lua
98 lines
2.5 KiB
Lua
local cd = {}
|
|
|
|
local function calc_dims(self, get_file_dims)
|
|
return assert(cd[self.type])(self, get_file_dims)
|
|
end
|
|
|
|
function cd:file(d)
|
|
return d(self.filename)
|
|
end
|
|
|
|
do
|
|
local function base_dim(self, get_dims) return calc_dims(self.base, get_dims) end
|
|
cd.opacity = base_dim
|
|
cd.invert = base_dim
|
|
cd.brighten = base_dim
|
|
cd.noalpha = base_dim
|
|
cd.makealpha = base_dim
|
|
cd.lowpart = base_dim
|
|
cd.mask = base_dim
|
|
cd.multiply = base_dim
|
|
cd.colorize = base_dim
|
|
cd.colorizehsl = base_dim
|
|
cd.hsl = base_dim
|
|
cd.screen = base_dim
|
|
cd.contrast = base_dim
|
|
end
|
|
|
|
do
|
|
local function wh(self) return self.w, self.h end
|
|
cd.resize = wh
|
|
cd.combine = wh
|
|
end
|
|
|
|
function cd:fill(get_dims)
|
|
if self.base then return calc_dims(self.base, get_dims) end
|
|
return self.w, self.h
|
|
end
|
|
|
|
do
|
|
local function upscale_to_higher_res(self, get_dims)
|
|
local base_w, base_h = calc_dims(self.base, get_dims)
|
|
local over_w, over_h = calc_dims(self.over, get_dims)
|
|
if base_w * base_h > over_w * over_h then
|
|
return base_w, base_h
|
|
end
|
|
return over_w, over_h
|
|
end
|
|
cd.blit = upscale_to_higher_res
|
|
cd.hardlight = upscale_to_higher_res
|
|
end
|
|
|
|
function cd:transform(get_dims)
|
|
if self.rotation_deg % 180 ~= 0 then
|
|
local base_w, base_h = calc_dims(self.base, get_dims)
|
|
return base_h, base_w
|
|
end
|
|
return calc_dims(self.base, get_dims)
|
|
end
|
|
|
|
do
|
|
local math_clamp = modlib.math.clamp
|
|
local function next_pow_of_2(x)
|
|
-- I don't want to use a naive 2^ceil(log(x)/log(2)) due to possible float precision issues.
|
|
local m, e = math.frexp(x) -- x = _*2^e, _ in [0.5, 1)
|
|
if m == 0.5 then e = e - 1 end -- x = 2^(e-1)
|
|
return math.ldexp(1, e) -- 2^e, premature optimization here we go
|
|
end
|
|
function cd:inventorycube(get_dims)
|
|
local top_w, top_h = calc_dims(self.top, get_dims)
|
|
local left_w, left_h = calc_dims(self.left, get_dims)
|
|
local right_w, right_h = calc_dims(self.right, get_dims)
|
|
local d = math_clamp(next_pow_of_2(math.max(top_w, top_h, left_w, left_h, right_w, right_h)), 2, 64)
|
|
return d, d
|
|
end
|
|
end
|
|
|
|
do
|
|
local function frame_dims(self, get_dims)
|
|
local base_w, base_h = calc_dims(self.base, get_dims)
|
|
return base_w, math.floor(base_h / self.framecount)
|
|
end
|
|
cd.verticalframe = frame_dims
|
|
cd.crack = frame_dims
|
|
cd.cracko = frame_dims
|
|
end
|
|
|
|
function cd:sheet(get_dims)
|
|
local base_w, base_h = calc_dims(self.base, get_dims)
|
|
return math.floor(base_w / self.w), math.floor(base_h / self.h)
|
|
end
|
|
|
|
function cd:png()
|
|
local png = modlib.minetest.decode_png(modlib.text.inputstream(self.data))
|
|
return png.width, png.height
|
|
end
|
|
|
|
return calc_dims
|